Distributors such as Davison's and Lipsey's often run distributor exclusives such as Ameriglo night sights, custom cerakote colors, etc.
Here are the Glock factory night sights for the G43: https://store.teamglock.com/gun-parts/slide-parts/sights-tools/glock-night-sight-set-6-1-slim-pkg.html
Yep, you’re right. :-)